247668798 has 32 divisors (see below), whose sum is σ = 535310496. Its totient is φ = 75938688.

The previous prime is 247668791. The next prime is 247668809. The reversal of 247668798 is 897866742.

247668798 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247668798² = 122679667005529608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247668791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17436 + ... + 28272.

It is an arithmetic number, because the mean of its divisors is an integer number (16728453).

Almost surely, 2^247668798 is an apocalyptic number.

247668798 is an abundant number, since it is smaller than the sum of its proper divisors (287641698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247668798 is a wasteful number, since it uses less digits than its factorization.

247668798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11148.

The product of its digits is 8128512, while the sum is 57.

The square root of 247668798 is about 15737.4965607621. The cubic root of 247668798 is about 627.9963199779.

The spelling of 247668798 in words is "two hundred forty-seven million, six hundred sixty-eight thousand, seven hundred ninety-eight".